Here are the pricing policy if you are interested in Layered Navigation extension for Magento 2 store.
Pricing Policy Table
|Pricing Policy||Magento 2 Layered Navigation by Mageplaza|
|Refund||30-day guarantee money back|
|Compatible with (updating)||CE 2.0 - 2.1.0; EE 2.0 - 2.1.0|
Visit Magento 2 Layered Navigation extension to get these featured functionalities.